postData 方法不执行函数 [英] postData method not executing function

问题描述

我有两个 jqGrid.在第一个网格中，我选择一行，第二个网格根据第一个网格的 id 刷新数据.至少它应该是这样工作的.

I have two jqGrids. In the first grid I select a row and the second grid refreshes with data based on the id of the first grid. At least that is how it is supposed to work.

//This is code from the second grid
postData: '{ lobId: ' + BudgetCore.getLobId() + ' }',

//Snippet from BudgetCore...
getLobId: function () {
    var row = jQuery(BudgetCore.GridTables.Lob).jqGrid('getGridParam', 'selrow');
    return row;
}

在 Chrome 中，我尝试调试函数 getLobid() 但它从未执行过.发送的 postData 请求:{ lobId:null }.

In Chrome I try to debug the function, getLobid() but it is never executed. The postData request sent: { lobId:null }.

如果我将上面的代码更改为 '{ lobId: ' + 1 + ' }' 它可以工作，所以一定有什么错误导致这个函数无法执行.在 Chrome JS 控制台中执行 BudgetCore.getLobId() 工作正常.

If I change the code above to '{ lobId: ' + 1 + ' }' it works, so there must be something wrong that is causing this function not to execute. In the Chrome JS console executing BudgetCore.getLobId() works fine.

推荐答案

你应该使用

postData: {
    lobId: function () {
        return $(BudgetCore.GridTables.Lob).jqGrid('getGridParam', 'selrow');
    }
}

有关详细信息，请参阅答案.

See the answer for more details.

已更新:如果你需要在 serializeGridData 内额外使用 JSON.stringify 那么你不能使用更简单的 <代码>serializeGridData:

UPDATED: If you need to use JSON.stringify additionally inside of serializeGridData then you can't use more the simplest version of serializeGridData:

serializeGridData: function (postData) { return return JSON.stringify(postData); }

您应该使用我在 答案:

serializeGridData: function (postData) {
    var propertyName, propertyValue, dataToSend = {};
    for (propertyName in postData) {
        if (postData.hasOwnProperty(propertyName)) {
            propertyValue = postData[propertyName];
            if ($.isFunction(propertyValue)) {
                dataToSend[propertyName] = propertyValue(); // call the function
            } else {
                dataToSend[propertyName] = propertyValue;
            }
        }
    }
    return JSON.stringify(dataToSend);
}

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